nrF51822 gazelle enhanced shockburst

[Tom Russell]

What is the difference between Gazelle and Enhanced Shockburst on the nRF51822? Is one faster or more energy efficient?

Thanks, Tom

[Håkon Alseth]

Hi Tom,

Both ESB and GZLL is based on the same framework in nRF51x22, so their performance is very similar. GZLL has a top layer, which also includes frequency hopping/frequency agility to ensure a stable RF link, which again may give a lesser performance due to re-transmissions (when sync'ing transmitter and receiver.)

ESB is a bit more simple, where it handles auto-ACKing under-the-hood, and it communicates on a static RF channel (no hopping) If you look at the nRF24L01+ datasheet, you can read more about the ESB protocol and how it's built up.

Best regards Håkon

[jcdergan]

Thanks Hakon!!!

[chenyu]

can ESB realize a frequence hopping?

[Håkon Alseth]

It can, but not by-default. You would have to implement a layer on top of ESB for frequency hopping.